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User's Guide
Solving Problems 6-9
Correcting communica-
tion errors––continued
This message appears when the printer's input buffer overflows. A
buffer overflow occurs when one of the following conditions exists:
99
99
9 The printer and your computer are not using the same handshaking
method.
99
99
9 The printer and your computer are not using a handshaking method
and the baud rate exceeds the print speed.
Corrective action: Change the HNDSHK setting on the Setup menu to
your computer's handshaking method. Then, press the Ready button to
re-enable printing and restart the print job from the beginning. If your
computer or software does not use handshaking, you must reduce the
baud rate of your computer and the printer to a rate that does not exceed
the print speed.
When you run the Serial test on the Setup menu, these messages appear
to notify you of a serial line failure.
Corrective action: If any of these messages appear, your serial inter-
face requires servicing. Contact your Service Representative for assis-
tance. To clear the message and return to the Setup menu, turn the
Select-dial. If the Serial test was performed without a loopback connec-
tor installed on the serial interface, the test is invalid.
BUFFER OVERFLOW
TxD/RxD ERROR
DTR/DSR ERROR
RTS/CTS ERROR
BUSY/DCD ERROR
User's Guide
Solving Problems 6-9
Correcting communica-
tion errors––continued
This message appears when the printer's input buffer overflows. A
buffer overflow occurs when one of the following conditions exists:
99
99
9 The printer and your computer are not using the same handshaking
method.
99
99
9 The printer and your computer are not using a handshaking method
and the baud rate exceeds the print speed.
Corrective action: Change the HNDSHK setting on the Setup menu to
your computer's handshaking method. Then, press the Ready button to
re-enable printing and restart the print job from the beginning. If your
computer or software does not use handshaking, you must reduce the
baud rate of your computer and the printer to a rate that does not exceed
the print speed.
When you run the Serial test on the Setup menu, these messages appear
to notify you of a serial line failure.
Corrective action: If any of these messages appear, your serial inter-
face requires servicing. Contact your Service Representative for assis-
tance. To clear the message and return to the Setup menu, turn the
Select-dial. If the Serial test was performed without a loopback connec-
tor installed on the serial interface, the test is invalid.
BUFFER OVERFLOW
TxD/RxD ERROR
DTR/DSR ERROR
RTS/CTS ERROR
BUSY/DCD ERROR